Case C-425/18: Order of the Court (Ninth Chamber) of 4 June 2019 (request for a preliminary ruling from the Tribunale Amministrativo Regionale per il Piemonte, Italy) — Consorzio Nazionale Servizi Società Cooperativa (CNS) v Gruppo Torinese Trasporti Gtt SpA (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court of Justice — Award of public works contracts in the water, energy, transport and postal services sectors — Directive 2004/18/EC — Article 45(2), first subparagraph, (d) — Grounds for exclusion — Grave professional misconduct — Infringement of the competition rules)